Arthroscopic excision of unstable os acromiale associated with impingement syndrome: a case report

Shinji Kawaguchi; Shoji Fukuta; Takahiko Tsutsui; Tetsuya Matsuura; Naoto Suzue; Daisuke Hamada; Tomohiro Goto; Ryo Miyagi; Keizo Wada; Kenichiro Kita; Shunsuke Tamaki; Toshihiko Matsumura; Akihiro Nagamachi; Koichi Sairyo

doi:10.2152/jmi.63.131

Case reports

Arthroscopic excision of unstable os acromiale associated with impingement syndrome: a case report

Shinji Kawaguchi, Shoji Fukuta, Takahiko Tsutsui, Tetsuya Matsuura, Naoto Suzue, Daisuke Hamada, Tomohiro Goto, Ryo Miyagi, Keizo Wada, Kenichiro Kita, Shunsuke Tamaki, Toshihiko Matsumura, Akihiro Nagamachi, Koichi Sairyo

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Keywords: os acromiale, impingement, arthroscopic excision, shoulder

JOURNAL FREE ACCESS

2016 Volume 63 Issue 1.2 Pages 131-134

DOI https://doi.org/10.2152/jmi.63.131

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Abstract

Os acromiale is a rare anatomical variant that is caused by failure of fusion of the acromial apophysis and is usually asymptomatic. We report a case of impingement syndrome of the left shoulder secondary to unstable os acromiale, which was initially overlooked and confirmed only during arthroscopic examination. Arthroscopic excision of the unstable fragment was successful without residual dysfunction of the deltoid muscle. J. Med. Invest. 63: 131-134, February, 2016

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